| Issue |
176638
|
| Summary |
[clang] Assertion `Idx >= 1 + HasThis && "stored index must be base-1 and not specify C++ implicit this"' failed.
|
| Labels |
clang:frontend,
crash,
generated by fuzzer
|
| Assignees |
|
| Reporter |
k-arrows
|
Reproducer:
https://godbolt.org/z/dKfTzPbsE
```cpp
void foo(int (*g)(const char *h, ...) __attribute__((nonnull(2147483648))) __attribute__((nonnull))) { };
```
The above reproducer is available at:
https://github.com/k-arrows/clang-assert-tests/blob/main/cases/00091.cpp
Backtrace:
```console
clang++: /root/llvm-project/llvm/tools/clang/include/clang/AST/Attr.h:358: unsigned int clang::ParamIdx::getASTIndex() const: Assertion `Idx >= 1 + HasThis && "stored index must be base-1 and not specify C++ implicit this"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics <source>
1. <source>:1:100: current parser token ')'
#0 0x000000000430d598 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x430d598)
#1 0x000000000430a9f4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x430a9f4)
#2 0x000000000424ccc8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000079c307442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000079c3074969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x000079c307442476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000079c3074287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000079c30742871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000079c307439e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000006e93fd6 handleNonNullAttr(clang::Sema&, clang::Decl*, clang::ParsedAttr const&) SemaDeclAttr.cpp:0:0
#10 0x0000000006e94200 handleNonNullAttrParameter(clang::Sema&, clang::ParmVarDecl*, clang::ParsedAttr const&) SemaDeclAttr.cpp:0:0
#11 0x0000000006eac251 ProcessDeclAttribute(clang::Sema&, clang::Scope*, clang::Decl*, clang::ParsedAttr const&, clang::Sema::ProcessDeclAttributeOptions const&) (.isra.0) SemaDeclAttr.cpp:0:0
#12 0x0000000006eaec7b clang::Sema::ProcessDeclAttributes(clang::Scope*, clang::Decl*, clang::Declarator const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6eaec7b)
#13 0x0000000006e27a5d clang::Sema::ActOnParamDeclarator(clang::Scope*, clang::Declarator&, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e27a5d)
#14 0x0000000006ab525c clang::Parser::ParseParameterDeclarationClause(clang::DeclaratorContext, clang::ParsedAttributes&, llvm::SmallVectorImpl<clang::DeclaratorChunk::ParamInfo>&, clang::SourceLocation&, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6ab525c)
#15 0x0000000006ab645a clang::Parser::ParseFunctionDeclarator(clang::Declarator&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6ab645a)
#16 0x0000000006abb42f clang::Parser::ParseDirectDeclarator(clang::Declarator&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6abb42f)
#17 0x0000000006aa85af clang::Parser::ParseDeclaratorInternal(clang::Declarator&, void (clang::Parser::*)(clang::Declarator&)) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6aa85af)
#18 0x000000000855e361 clang::StackExhaustionHandler::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x855e361)
#19 0x0000000006aab25f clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6aab25f)
#20 0x0000000006a690ab clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a690ab)
#21 0x0000000006a6989f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a6989f)
#22 0x0000000006a716ca clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a716ca)
#23 0x0000000006a72665 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a72665)
#24 0x0000000006a72b10 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a72b10)
#25 0x0000000006a536b3 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a536b3)
#26 0x0000000004c75558 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c75558)
#27 0x0000000004f6f965 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4f6f965)
#28 0x0000000004eef33e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4eef33e)
#29 0x000000000506a5dd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x506a5dd)
#30 0x0000000000ddd1de cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xddd1de)
#31 0x0000000000dd3baa ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#32 0x0000000000dd3d2d int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#33 0x0000000004ce8a99 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#34 0x000000000424d164 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x424d164)
#35 0x0000000004ce90af clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#36 0x0000000004ca9a82 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca9a82)
#37 0x0000000004caaa2e clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4caaa2e)
#38 0x0000000004cb1e75 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4cb1e75)
#39 0x0000000000dd9551 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd9551)
#40 0x0000000000c96bf4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc96bf4)
#41 0x000079c307429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#42 0x000079c307429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#43 0x0000000000dd3645 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd3645)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
Goes back to clang-7:
https://godbolt.org/z/f6TWsEdWW
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